CN102442827A - Method for preparing hollow perforated porcelain ball - Google Patents
Method for preparing hollow perforated porcelain ball Download PDFInfo
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- CN102442827A CN102442827A CN2010105094045A CN201010509404A CN102442827A CN 102442827 A CN102442827 A CN 102442827A CN 2010105094045 A CN2010105094045 A CN 2010105094045A CN 201010509404 A CN201010509404 A CN 201010509404A CN 102442827 A CN102442827 A CN 102442827A
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Abstract
The invention provides a method for preparing a hollow perforated porcelain ball, which comprises the following steps: taking porcelain clay as a raw material; adding a hollowing agent made of a spherical calcium or magnesium material; making into a porcelain body with porcelain clay by an ordinary process; drilling through holes on the porcelain body, wherein the shapes and the number of the through holes are set according to the requirements; roasting at high temperature, and forming a perforated porcelain ball body; placing in an acidic solution; and allowing the hollowing agent to be melted to obtain a hollow perforated porcelain ball. The method has the advantages of simple manufacture, good permeability, large porosity, and small specific gravity of the porcelain ball. The porcelain ball is filled to the top of a reactor and can accommodate a large number of sediments in the reactor, accordingly, the problem of large pressure drop of the reactor can be effectively solved, the operation cycle of a device is prolonged, and the economic benefits are obvious.
Description
Technical field
That the present invention relates to is a kind of preparation method who is used for the stopping composition of petrochemical industry reactor drum, specifically a kind of preparation method of hollow perforate Ceramic Balls stupalith.
Background technology
At petrochemical industry, widely-used porcelain ball is as a kind of filler of reactor drum, and it has physical strength, acid and alkali-resistance and erosion resistance preferably; And can improve the redispersibility of material in the reactor drum, and reduce circulating resistance, further improve the filter effect of gas-liquid; But it is than great, and hole is little, can only hold impurity by piling up the gap; After the oil product settling stopped up the gap, reactor pressure decrease increased, and device must be stopped work and handled.
In order to improve the volume dirt ability of porcelain ball; A large amount of improvements have been done in this area on porcelain ball profile, honeycomb Pored ceramic ball, the CN2837299Y that proposes like CN201053000Y proposes solid Pored ceramic ball, CN2550055Y and propose Lantern porcelain ball, CN2848852Y honeycomb porcelain ball, CN2413787Y and propose Pored ceramic ball, CN2762877Y and propose that the crown porcelain ball of protrusion of surface, CN2535119Y propose the light Pored ceramic ball of bubble, CN2360151Y proposes Slot ceramic ball.These futuramic porcelain balls are compared with pure solid porcelain ball has had very big improvement, and packing ratio is great, porosity is little but still exist, and holds the deficiency of dirty ability.
Summary of the invention
The present invention has designed a kind of preparation method of hollow perforate Ceramic Balls newly; This porcelain ball has that bulk specific gravity is little, porosity is big, holds the strong advantage of dirty ability, can effectively reduce the reactor bed pressure drop; The conditioned reaction logistics distributes, and this hollow Pored ceramic ball has broad application prospects.
The preparation method of the hollow Pored ceramic ball of the present invention comprises following content:
1, preparation porcelain mud;
2, calcareous or magnesian is hollow dose with sphere, and hollow dose outer equably wraps up in one deck porcelain mud, and compression moulding in mould is then dried, and forms the porcelain embryo;
3, perforate on the porcelain embryo;
4, put into stoving oven to the porcelain embryo of perforate, be warmed up to 1200 ℃ of-1600 ℃ of sintering 0.5～5 hour;
5, the porcelain ball is cooled to room temperature, puts into acidic solution, dissolves hollow dose, makes hollow Pored ceramic ball.
In the inventive method, porcelain mud can in order to increase the cohesiveness of porcelain mud, add an amount of alumina dry glue by existing method preparation in the china clay raw material, and the alumina dry glue consumption is 5%～30% of a china clay weight.
In the inventive method, hollow dose of calcareous or magnesian is generally quicklime, calcium hydroxide, lime carbonate, Natural manganese dioxide, Marinco H, magnesiumcarbonate etc., is preferably quicklime or Natural manganese dioxide.Calcareous material or magnesian adopt suitable method to process sphere, as with mould compression moulding etc.Materials such as one deck starch be can apply on hollow dose of surface, hollow dose and porcelain ball formation isolation made.
In the inventive method, the acidic solution that dissolves hollow dose is a hydrochloric acid soln, and the concentration of hydrochloric acid soln is generally 0.1～5mol/L.
The inventive method prepares diameter, hole shape, the percentage of open area of porcelain ball, the thickness of hollow porcelain ball etc. and confirms according to the needs of using.
The inventive method can prepare the hollow Pored ceramic ball of various suitable character as required; Hollow Pored ceramic ball has more open grain and the dirty ability of appearance; Be applicable to impure or easy incrustation reactive system; Like residual oil hydrocatalyst bed top, coker gasoline hydrogenation catalyst bed top, the Sewage treatment systems reactor drum is medium.
Description of drawings
Fig. 1 is the first kind of hollow porcelain spherical structure of perforate synoptic diagram;
Fig. 2 is the second kind of hollow porcelain spherical structure of perforate synoptic diagram;
Fig. 3 is the hollow porcelain spherical structure of the third a perforate synoptic diagram.
Wherein: 1, porcelain outer surface of ball, 2, the hollow sphere of porcelain ball, 3, the sphere perforate.
Embodiment
Provide the concrete preparation process of the hollow Pored ceramic ball of the present invention below.
1, be raw material with alumina dry glue and china clay, alumina dry glue is 10% of a china clay weight, adds appropriate amount of addition agent and water and peptizing agent, mixes, stirs into available porcelain mud.
2, the spherical calcium oxide with suitable diameter is hollow dose, outer equably one deck porcelain mud of wrapping up in, and whole spherical in shape or almost spherical, compression moulding in mould is then dried, and forms the porcelain embryo.
3, perforate on the porcelain embryo is done suitable adjusting according to the size of ball, and the hole is uniform distribution on sphere.
4, put into stoving oven to the porcelain embryo of perforate, be warmed up to 1200 ℃-1600 ℃, formation contains hole sintering porcelain ball.
5, the porcelain ball is cooled to room temperature, puts into acidic solution, dissolves hollow dose of quicklime, makes hollow perforate Ceramic Balls.
The diameter of hollow Pored ceramic ball can be confirmed as required, is generally 3～80mm, preferred 5～20mm.The thickness of hollow Pored ceramic ball is generally 2%～40% of hollow Pored ceramic ball diameter, is preferably 5%～30%.The perforate on hollow Pored ceramic ball surface can be various suitable shape, is preferably circle, ellipse, Polygons, bar shaped etc.The quantity of perforate specifically is provided with according to the diameter of hollow Pored ceramic ball, is generally 2～100, is preferably 4～20.Percentage of open area (the long-pending ratio of total area duty heart Pored ceramic ball outside table of perforate) is 0.1%～30%, is preferably 1%～20%.
In Fig. 1, the hollow porcelain ball of said perforate is raw material with china clay, and the spherical calcium oxide of diameter 14mm is hollow dose, wraps up in the thick porcelain mud of 3mm outward, in mould, is pressed into sphere, dries, and forms the porcelain embryo.On the porcelain embryo, open circular hole, the diameter in hole is 3mm, and the quantity in hole is 10, and the hole is uniform distribution on sphere.Put into stoving oven to the porcelain embryo of perforate, become Pored ceramic ball 1200 ℃ of-1600 ℃ of following roastings, the porcelain ball is cooled to room temperature, puts in the hydrochloric acid soln that concentration is 1mol/L, dissolves hollow dose of quicklime, makes hollow perforate Ceramic Balls.
In Fig. 2, the hollow porcelain ball of said perforate is raw material with china clay, and the spherical Natural manganese dioxide of diameter 10mm is hollow dose, wraps up in the thick porcelain mud of 3mm outward, in mould, is pressed into sphere, dries, and forms the porcelain embryo.On the porcelain embryo, open square hole, the length of side in hole is 3mm, and the quantity in hole is 10, and the hole is uniform distribution on sphere.Put into stoving oven to the porcelain embryo of perforate, become Pored ceramic ball 1200 ℃ of-1600 ℃ of following roastings, the porcelain ball is cooled to room temperature, puts in the hydrochloric acid soln that concentration is 0.5mol/L, dissolves hollow dose of quicklime, makes hollow perforate Ceramic Balls.
In Fig. 3, the hollow porcelain ball of said perforate is raw material with china clay, and the spherical calcium oxide of diameter 5mm is hollow dose, wraps up in the thick porcelain mud of 1mm outward, in mould, is pressed into sphere, dries, and forms the porcelain embryo.On the porcelain embryo, open delthyrium, the length of side in hole is 1mm, and the quantity in hole is 6, and the hole is uniform distribution on sphere.Put into stoving oven to the porcelain embryo of perforate, become Pored ceramic ball 1200 ℃ of-1600 ℃ of following roastings, the porcelain ball is cooled to room temperature, puts in the hydrochloric acid soln of 1mol/L, dissolves hollow dose of quicklime, makes hollow perforate Ceramic Balls.
Claims (10)
1. the preparation method of a hollow Pored ceramic ball is characterized in that comprising following content:
(1) preparation porcelain mud;
(2) calcareous or magnesian is hollow dose with sphere, and hollow dose outer equably wraps up in one deck porcelain mud, and compression moulding in mould is then dried, and forms the porcelain embryo;
(3) perforate on the porcelain embryo;
(4) put into stoving oven to the porcelain embryo of perforate, be warmed up to 1200 ℃ of-1600 ℃ of sintering 0.5～5 hour;
(5) the porcelain ball is cooled to room temperature, puts into acidic solution, dissolves hollow dose, makes hollow Pored ceramic ball.
2. according to the described method of claim 1, it is characterized in that: porcelain is clay to be equipped with, and in the china clay raw material, adds an amount of alumina dry glue.
3. according to the described method of claim 2, it is characterized in that: the alumina dry glue consumption is 5%～30% of a china clay weight.
4. according to the described method of claim 1, it is characterized in that: hollow dose of calcareous or magnesian is quicklime, calcium hydroxide, lime carbonate, Natural manganese dioxide, Marinco H or magnesiumcarbonate.
5. according to claim 1 or 4 described methods, it is characterized in that: hollow dose of surface-coated one deck starch of calcareous material or magnesian makes hollow dose and porcelain ball formation isolation.
6. according to the described method of claim 1, it is characterized in that: the acidic solution that dissolves hollow dose is a hydrochloric acid soln, and the concentration of hydrochloric acid soln is 0.1～5mol/L.
7. according to the described method of claim 1, it is characterized in that: the diameter of hollow Pored ceramic ball is 3～80mm.
8. according to the described method of claim 1, it is characterized in that: the thickness of hollow Pored ceramic ball is 2%～40% of hollow Pored ceramic ball diameter.
9. according to the described method of claim 1, it is characterized in that: the hole shape on hollow Pored ceramic ball surface is circular, ellipse, Polygons or bar shaped, and the quantity of perforate is 2～100.
10. according to the described method of claim 1, it is characterized in that: the percentage of open area of hollow Pored ceramic ball is 0.1%～30%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105094045A CN102442827A (en) | 2010-10-13 | 2010-10-13 | Method for preparing hollow perforated porcelain ball |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105094045A CN102442827A (en) | 2010-10-13 | 2010-10-13 | Method for preparing hollow perforated porcelain ball |
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| CN102442827A true CN102442827A (en) | 2012-05-09 |
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| CN2010105094045A Pending CN102442827A (en) | 2010-10-13 | 2010-10-13 | Method for preparing hollow perforated porcelain ball |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111908930A (en) * | 2020-08-05 | 2020-11-10 | 辽宁科技大学 | Preparation method of refractory ball for high heat exchange rate hot blast stove |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1445311A (en) * | 2002-03-20 | 2003-10-01 | 新加坡纳米材料科技有限公司 | calcium carbonate/silicon dioxide-water(1/n) nano-compound particle and hollow silicon dioxide-water(1/n) nano-material and its preparation method |
| CN101066875A (en) * | 2006-05-01 | 2007-11-07 | 平顶山新型耐材有限公司 | Calcining process of synthesizing hollow silica alumina ball |
| CN201053000Y (en) * | 2007-02-05 | 2008-04-30 | 王永福 | Honeycomb perforated porcelain ball |
| CN101518743A (en) * | 2008-03-27 | 2009-09-02 | 萍乡市石化填料有限责任公司 | Porous spherical support protective agent |
-
2010
- 2010-10-13 CN CN2010105094045A patent/CN102442827A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1445311A (en) * | 2002-03-20 | 2003-10-01 | 新加坡纳米材料科技有限公司 | calcium carbonate/silicon dioxide-water(1/n) nano-compound particle and hollow silicon dioxide-water(1/n) nano-material and its preparation method |
| CN101066875A (en) * | 2006-05-01 | 2007-11-07 | 平顶山新型耐材有限公司 | Calcining process of synthesizing hollow silica alumina ball |
| CN201053000Y (en) * | 2007-02-05 | 2008-04-30 | 王永福 | Honeycomb perforated porcelain ball |
| CN101518743A (en) * | 2008-03-27 | 2009-09-02 | 萍乡市石化填料有限责任公司 | Porous spherical support protective agent |
Non-Patent Citations (2)
| Title |
|---|
| 王洁欣等: "新型球形纳米空心SiO2的模板合成方法研究", 《化学学报》 * |
| 罗民华: "《多孔陶瓷实用技术》", 31 March 2006, 中国建材工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111908930A (en) * | 2020-08-05 | 2020-11-10 | 辽宁科技大学 | Preparation method of refractory ball for high heat exchange rate hot blast stove |
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Application publication date: 20120509 |